M4.2 Earthquake 9 km ENE of Toyota, Japan — February 17, 2021
2021-02-17 18:58:30 UTC (2021-02-17) · approx. 3:58 AM UTC+9 local
On February 17, 2021 at 18:58 UTC, a magnitude 4.2 shallow crustal earthquake struck 9 km ENE of Toyota, Japan, at a depth of 43.8 km and coordinates 35.1237°, 137.2372°.
Physical scale: An earthquake of magnitude 4.2 releases seismic energy equivalent to roughly 30 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 476 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
137.2372°E
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Common Questions
How strong was the magnitude 4.2 earthquake near Toyota, Japan?
The magnitude 4.2 earthquake that struck 9 km ENE of Toyota, Japan on February 17, 2021 at 18:58 UTC had a depth of 43.8 km. For context, this was a light earthquake commonly felt near the epicenter.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.2 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.2 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000dkf3). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, February 17, 2021). M4.2 Earthquake 9 km ENE of Toyota, Japan — February 17, 2021. Retrieved April 23, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000dkf3/